Fitment: Universal Fuel Can will fit both plastic and metal fuel jugs,which can be installed on any non-vented plastic fuel cans in order to provide a vent and allow faster flowing fuel. Leak Proof & Faster Flow Design: Gas can replacement vent cap is designed with screw caps and double rubber sealing rings that can ensure leak proof, Allowing faster flowing .No more glugging and spilling when fueling. Premium Material: Universal gas can vent cap is made of premium stainless steel and premium rubber, rustproof and durable. Easy Installation: Drill a 3/16" hole at the back of the fuel tank, pass the valve stem and rubber ring through the iron wire that is connected to the tank port and the drilled hole in advance to reach the drilled hole, then screw on the nut and cover the dust cap.Then it is done. Package Include:3PCS gas can vent caps, 1PC drill, 1PC wire,1PC wrench and 3PCS stickers.